Abstract
Full-spectrum light-emitting diodes (LEDs) mainly comprising 460-nm + 595-nm light are becoming a mainstay in the horticulture industry, and recent studies indicate that plant productivity under white LEDs is higher than combined blue and red LED lighting. Different light properties (wavelength and bandwidth) in full-spectrum light, particularly for the blue and amber light regions, have only partly been explored. This research aimed to characterize the effects of amber + blue light wavelengths and bandwidths on tomato (Solanum lycopersicum cv. Beefsteak) growth, morphology, and production efficiency. Tomato seedlings were subjected to four different light treatments for 60 days: narrow amber light (595 nm), narrow blue + narrow amber light (430 nm + 595 nm) with a 1:10 ratio, white LED (455 nm + 595 nm), and a high-pressure sodium (HPS) lamp (control). The highest mean fresh mass yield occurred with the narrow blue + narrow amber light (479 g), followed by white LED at 20% less, HPS at 34% less, and narrow amber at 40% less. Dry mass and plant height were similar among light treatments. Supplementing narrow amber light with 430-nm blue light led to a 20% increase in chlorophyll content. Findings indicate that narrow amber light is more efficient in biomass accumulation than broad amber light and that precise selection of different blue and amber wavelengths can greatly impact the growth and development of tomato seedlings. This energy-efficient narrow-wavelength combination shows improvement over white LED lighting for maximizing tomato growth.
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Claims 8
Claim · model-written summary
Narrow blue plus narrow amber light produced the highest mean tomato fresh mass yield of 479 g.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- narrow blue + narrow amber lighte0
- Outcome
- fresh mass yielde0
- Direction
- higheste0
- Value
- 479 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mean fresh mass yield occurred with the narrow blue + narrow amber light (479 g)”
t0“Tomato”
Claim · model-written summary
White LED fresh mass yield was 20% less than under narrow blue plus amber light.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- white LEDe0
- Outcome
- fresh mass yielde0
- Direction
- lesse0
- Value
- 20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mean fresh mass yield occurred with the narrow blue + narrow amber light (479 g), followed by white LED at 20% less”
t0“Tomato”
Claim · model-written summary
HPS fresh mass yield was 34% less than under narrow blue plus amber light.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mean fresh mass yield occurred with the narrow blue + narrow amber light (479 g), followed by white LED at 20% less, HPS at 34% less”
t0“Tomato”
Claim · model-written summary
Narrow amber fresh mass yield was 40% less than under narrow blue plus amber light.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- narrow ambere0
- Outcome
- fresh mass yielde0
- Direction
- lesse0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mean fresh mass yield occurred with the narrow blue + narrow amber light (479 g), followed by white LED at 20% less, HPS at 34% less, and narrow amber at 40% less”
t0“Tomato”
Claim · model-written summary
Dry mass and plant height were similar among light treatments.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- light treatmentse0
- Outcome
- Dry mass and plant heighte0
- Direction
- similare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry mass and plant height were similar among light treatments”
t0“Tomato”
Claim · model-written summary
Adding 430-nm blue light to narrow amber light increased tomato chlorophyll content by 20%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 430-nm blue lighte0
- Outcome
- chlorophyll contente0
- Direction
- increasee0
- Value
- 20%e0
- Comparator
- narrow amber lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementing narrow amber light with 430-nm blue light led to a 20% increase in chlorophyll content”
t0“Tomato”
Claim · model-written summary
Authors interpret narrow amber light as more efficient for biomass accumulation than broad amber light.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- narrow amber lighte0
- Outcome
- biomass accumulatione0
- Direction
- more efficiente0
- Comparator
- broad amber lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“narrow amber light is more efficient in biomass accumulation than broad amber light”
t0“Tomato”
Claim · model-written summary
The narrow wavelength combination improved tomato growth over white LED lighting.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- narrow-wavelength combinatione0
- Outcome
- tomato growthe0
- Direction
- improvemente0
- Comparator
- white LED lightinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This energy-efficient narrow-wavelength combination shows improvement over white LED lighting for maximizing tomato growth”
t0“Tomato”
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